Gas-pipe coupling.



S. SGHWED.

AS PIPE COUPLING.

APPLICATION FILED APR.11, 1912 Patented Oct. 22, 1912,

i two was M W MM a plings; and I do hereby declare the follow- 7 KEYEDANT SAMUEL sonwnn, or ivnwYo n; x.-

- GAS-PIPE conrnmd.

Specification of Letters Iatcnt.

Patented Oct. 22,1912;

To all whom it may concern:

Be it known that I, SAMUEL Sonwnn, a citizen of the United States,residing at New York, in the county of New York, State of New York, haveinvented certain new and useful Improvements in Gas-Pipe Couing to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in gas pipe couplings.

The prlncipal ob ect of the invention is to provide a positive means forholding a gas tube in engagement with the nipple of a gas jet or-stove,and thereby eliminate all danger of the tube becoming accidentallydetached.

Another object of the invention is to provide-a coupling for the purposeset forth which may be used in connection with the style of nipple nowin common use.

A further object of the invention is to provide a coupling of thecharacter described which will permit of the hose being readilyattached. to or detached from a nipple.

A still further object of the invention is to provide a coupling of thecharacter de-.

scribed which 1s composed of a minimum number of parts, is thereforesimple in construction, and is cheap to manufacture.

With these and other objects in View, the invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated in the accompanying drawing and pointed out in the claimshereto appended; it bein understood that various changes in the orm,proportion, size and minor details of construction Within the scope ofthe claims may be resorted to without departing from -the spirit orsacrificing an of the advantages of the invention.

n the drawing: Figure 1 is a top plan view showing my improved couplingassociated with a stove nipple, Fig. 2 is a longitudinal sectional viewtherethrough, Fig. 3 is-a side elevation of the coupling, Fig. 4 is aperspective view of onef'of the clamping elements, and Fig. 5 isalongitudinal sectional view showing the application of the coupling to agas jet nipple, the nipple being shown in elevation.

is designated as a whole by the reference letter A, and this couplingincludes an open ended hose gripping tube 9 which is longitudinallyslotted, as at 10, and'is formed With an inwardly extending clamping end9 adapted for gripping the hose 8, as will be hereinafter explalned.Extending laterally from the opposite end 9? of the tube and arrangeddiametrically opposite each other are perforated ears 1111. Opposedsemicircular clamping elements 12-12 are formed from sheet metal, andprojecting centrally from one edge of each element is an car 13 which ispivotally connected to a respective ear 11 of the tube 9 by means of apin. The outer end of each element 12 is formed with an inwardlyextending flange 15. The ends of each element are centrally formed withsemi-circular recesses 1616. Disposed on opposite sides of each pair ofears 11 and 18 is a' pair of coil springs 17 17, one end of each springbeing fixed to a respective clamping element 12 and the other end fixedto the tube 9 so as to normally urge the clamping elements toward eachother.

7 In practice, the hose 8 is fed through the slotted tube 9, and has itsfree end engaged with the nipple 5.' While the hose is thus beingattached to the nipple the operators 'fingers spread the clampingelements 12 against'the tension of the springs 17 so as to position thesame around the valve stem 7. As soon the clamping elements arereleased, the spring 17 will cause the clo ments to move inwardly andthe recesses 16 of said elements will conj'ointly receive the oppositeends of said valve stem and thereby retain the coupling A againstaccidental displacement.

- By referring to Fig. 5

to a gas jet nipple 18 whenever so desired. What is claimed is: 1. In agas pipe coupling, the combination with a hose gripping element formedfrom a longitudinally split tube, one end thereof being inwardly curvedto frictionally grip the hose, of opposed nipple engaging jaws a will beobservedthat the coupling A can be readily attached m its outer end withan inwardly extending mezmo sgectively liavii one and connected to a jawand he other end to the tube for nor mally urging the jawstowm'd eachother.

ture in presence of In tesbiinony whereof, I allix my signn- 15 twoWitnesses. SAMUEL SCHWED.

Witnesses JOSEPH SCHWED, Lows SOH'WEB.

